Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4586850 | Underwater trenching system | Franklin C. Wade | 1986-05-06 |
| 4389139 | Oscillating jet head underwater trenching apparatus | — | 1983-06-21 |
| 4274760 | Self-propelled underwater trenching apparatus and method | — | 1981-06-23 |
| D254022 | Giraffe swing seat | Jane C. Knight | 1980-01-22 |
| D254023 | Lion swing seat | Jane C. Knight | 1980-01-22 |